Cops seized 11 guns from the Queens home of UPS manager Kristopher Vecchio, 34, a day after the alleged gunslinger was arrested for slashing his 4-foot-10, 100-pound girlfriend with a pair of scissors.

The girlfriend, Iman McIntosh, 26, was charged with misdemeanor assault for scratching and biting her 5-foot-9, 180-pound beau during the dustup on Monday, law enforcement sources said.

Cops executing a search warrant the following day the cache stashed underneath Vecchio’s couch and in his closet, police said. None of the weapons were loaded but cops recovered ammunition as well, sources added.

The UPS manager’s weapons collection included a 20-gauge Sears & Roebuck Jed Williams shot gun and a collector’s-grade 1918 model rifle with a scope in a collection that included three shotguns, five rifles and three handguns, law enforcement sources said.

Vecchio is awaiting arraignment on the weapons charge, authorities said.